Study: Half of women over 40 get annual mammograms
SAN ANTONIO - December 9, 2010 -- Remember the uproar last year when a government task force said most women don't need annual mammograms? It turns out that only half of women over 40 had been getting them that often to start with, even when they have insurance that covers screening.
The information comes from a review of insurance claims that show what women actually do - not what they say in surveys.
"We all support many things - fast food isn't what we should eat for dinner every night - but that isn't what we do," said Dr. Milayna Subar of Medco Health Solutions Inc., which manages benefits for many large insurers, including some Medicare plans.
She did the study, using records on more than 1.5 million women, and reported results Thursday at a breast cancer conference.
The finding is disturbing, said Dr. Judy Garber of Dana-Farber Cancer Institute in Boston and president-elect of the American Association for Cancer Research, one of the conference's sponsors. "Here's an insured population where cost is not a barrier," and yet many women are not getting tested.
Rates of screening are likely even lower among women without insurance, though government programs pay for mammograms for many women who lack such coverage.
Mammograms are X-rays of the breast that can reveal tumors when they're too small to be felt. But they also raise many false alarms, leading to worry, expense and overtreatment. How often and when women should get mammograms has long been controversial.
In November 2009, the U.S. Preventive Services Task Force said women in their 40s at average risk for cancer do not need mammograms and that women 50 and older need them only every two years. Many groups, including the American Cancer Society, still advise annual mammograms starting at 40.
Everyone agrees that the age group that most benefits from mammograms is women 50 to 64, and the government estimates that roughly three-quarters of women in this age group had a mammogram within the previous two years, based on surveys.
However, the review of insurance claims from 2006 through 2009 put the true number at 65 percent. It also found that only 54 percent of women in this age group had been getting mammograms every year.
Among all women 40 to 85, only half had been getting annual mammograms, the study found.
Doctors will not be surprised by these results, said Dr. Peter Ravdin of the University of Texas Health Science Center at San Antonio, one of the organizers of the cancer conference. Women forget or lose track of when they last had a mammogram, and that's one of the downsides of advice not to go every year, he said. Some may even lie when asked how often they go.
"There's both a conscious and mostly unconscious desire to please the person asking that question," because most women know they should be getting one, Ravdin said.
Dr. Marisa Weiss, a 51-year-old Philadelphia breast cancer specialist who founded the consumer Web site breastcancer.org, is glad she had been following her own advice to get screened every year. She was diagnosed in April with breast cancer found through a routine mammogram.
"It was a very favorable diagnosis and I feel very lucky about that. I was a true beneficiary of early detection," she said.
If she'd followed advice to get screened just every two years, it could have meant "a real difference in my prognosis," Weiss said.
breast cancer, healthcheck
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